1/*
2 * Copyright (C) 2005-2017 Apple Inc. All rights reserved.
3 *
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Library General Public
6 * License as published by the Free Software Foundation; either
7 * version 2 of the License, or (at your option) any later version.
8 *
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Library General Public License for more details.
13 *
14 * You should have received a copy of the GNU Library General Public License
15 * along with this library; see the file COPYING.LIB. If not, write to
16 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
17 * Boston, MA 02110-1301, USA.
18 *
19 */
20
21#pragma once
22
23#include "ColorHash.h"
24#include "ControlStates.h"
25#include "GraphicsContext.h"
26#include "PaintInfo.h"
27#include "PopupMenuStyle.h"
28#include "ScrollTypes.h"
29#include "StyleColor.h"
30#include "ThemeTypes.h"
31#include <wtf/HashMap.h>
32
33namespace WebCore {
34
35class BorderData;
36class Element;
37class FileList;
38class FillLayer;
39class HTMLInputElement;
40class Icon;
41class Page;
42class RenderAttachment;
43class RenderBox;
44class RenderMeter;
45class RenderObject;
46class RenderProgress;
47class RenderStyle;
48class StyleResolver;
49
50class RenderTheme {
51protected:
52 RenderTheme();
53
54 virtual ~RenderTheme() = default;
55
56public:
57 // This function is to be implemented in platform-specific theme implementations to hand back the
58 // appropriate platform theme.
59 WEBCORE_EXPORT static RenderTheme& singleton();
60
61 virtual void purgeCaches();
62
63 // This method is called whenever style has been computed for an element and the appearance
64 // property has been set to a value other than "none". The theme should map in all of the appropriate
65 // metrics and defaults given the contents of the style. This includes sophisticated operations like
66 // selection of control size based off the font, the disabling of appearance when certain other properties like
67 // "border" are set, or if the appearance is not supported by the theme.
68 void adjustStyle(StyleResolver&, RenderStyle&, const Element*, bool UAHasAppearance, const BorderData&, const FillLayer&, const Color& backgroundColor);
69
70 // This method is called to paint the widget as a background of the RenderObject. A widget's foreground, e.g., the
71 // text of a button, is always rendered by the engine itself. The boolean return value indicates
72 // whether the CSS border/background should also be painted.
73 bool paint(const RenderBox&, ControlStates&, const PaintInfo&, const LayoutRect&);
74 bool paintBorderOnly(const RenderBox&, const PaintInfo&, const LayoutRect&);
75 bool paintDecorations(const RenderBox&, const PaintInfo&, const LayoutRect&);
76
77 // The remaining methods should be implemented by the platform-specific portion of the theme, e.g.,
78 // RenderThemeMac.cpp for Mac OS X.
79
80 // These methods return the theme's extra style sheets rules, to let each platform
81 // adjust the default CSS rules in html.css, quirks.css, mediaControls.css, or plugIns.css
82 virtual String extraDefaultStyleSheet() { return String(); }
83 virtual String extraQuirksStyleSheet() { return String(); }
84 virtual String extraPlugInsStyleSheet() { return String(); }
85#if ENABLE(VIDEO)
86 virtual String mediaControlsStyleSheet() { return String(); }
87 virtual String modernMediaControlsStyleSheet() { return String(); }
88 virtual String extraMediaControlsStyleSheet() { return String(); }
89 virtual String mediaControlsScript() { return String(); }
90 virtual String mediaControlsBase64StringForIconNameAndType(const String&, const String&) { return String(); }
91 virtual String mediaControlsFormattedStringForDuration(double) { return String(); }
92#endif
93#if ENABLE(FULLSCREEN_API)
94 virtual String extraFullScreenStyleSheet() { return String(); }
95#endif
96#if ENABLE(SERVICE_CONTROLS)
97 virtual String imageControlsStyleSheet() const { return String(); }
98#endif
99#if ENABLE(DATALIST_ELEMENT)
100 String dataListStyleSheet() const;
101#endif
102#if ENABLE(INPUT_TYPE_COLOR)
103 String colorInputStyleSheet() const;
104#endif
105
106 // A method to obtain the baseline position for a "leaf" control. This will only be used if a baseline
107 // position cannot be determined by examining child content. Checkboxes and radio buttons are examples of
108 // controls that need to do this.
109 virtual int baselinePosition(const RenderBox&) const;
110
111 // A method for asking if a control is a container or not. Leaf controls have to have some special behavior (like
112 // the baseline position API above).
113 bool isControlContainer(ControlPart) const;
114
115 // A method asking if the control changes its tint when the window has focus or not.
116 virtual bool controlSupportsTints(const RenderObject&) const { return false; }
117
118 // Whether or not the control has been styled enough by the author to disable the native appearance.
119 virtual bool isControlStyled(const RenderStyle&, const BorderData&, const FillLayer&, const Color& backgroundColor) const;
120
121 // A general method asking if any control tinting is supported at all.
122 virtual bool supportsControlTints() const { return false; }
123
124 // Some controls may spill out of their containers (e.g., the check on an OS X checkbox). When these controls repaint,
125 // the theme needs to communicate this inflated rect to the engine so that it can invalidate the whole control.
126 virtual void adjustRepaintRect(const RenderObject&, FloatRect&);
127
128 // This method is called whenever a relevant state changes on a particular themed object, e.g., the mouse becomes pressed
129 // or a control becomes disabled.
130 virtual bool stateChanged(const RenderObject&, ControlStates::States) const;
131
132 // This method is called whenever the theme changes on the system in order to flush cached resources from the
133 // old theme.
134 virtual void themeChanged() { }
135
136 // A method asking if the theme is able to draw the focus ring.
137 virtual bool supportsFocusRing(const RenderStyle&) const;
138
139 // A method asking if the theme's controls actually care about redrawing when hovered.
140 virtual bool supportsHover(const RenderStyle&) const { return false; }
141
142 // A method asking if the platform is able to show datalist suggestions for a given input type.
143 virtual bool supportsDataListUI(const AtomicString&) const { return false; }
144
145 // Text selection colors.
146 Color activeSelectionBackgroundColor(OptionSet<StyleColor::Options>) const;
147 Color inactiveSelectionBackgroundColor(OptionSet<StyleColor::Options>) const;
148 virtual Color transformSelectionBackgroundColor(const Color&, OptionSet<StyleColor::Options>) const;
149 Color activeSelectionForegroundColor(OptionSet<StyleColor::Options>) const;
150 Color inactiveSelectionForegroundColor(OptionSet<StyleColor::Options>) const;
151
152 // List box selection colors
153 Color activeListBoxSelectionBackgroundColor(OptionSet<StyleColor::Options>) const;
154 Color activeListBoxSelectionForegroundColor(OptionSet<StyleColor::Options>) const;
155 Color inactiveListBoxSelectionBackgroundColor(OptionSet<StyleColor::Options>) const;
156 Color inactiveListBoxSelectionForegroundColor(OptionSet<StyleColor::Options>) const;
157
158 // Highlighting colors for search matches.
159 Color activeTextSearchHighlightColor(OptionSet<StyleColor::Options>) const;
160 Color inactiveTextSearchHighlightColor(OptionSet<StyleColor::Options>) const;
161
162 virtual Color disabledTextColor(const Color& textColor, const Color& backgroundColor) const;
163
164 Color focusRingColor(OptionSet<StyleColor::Options>) const;
165 virtual Color platformFocusRingColor(OptionSet<StyleColor::Options>) const { return Color(0, 0, 0); }
166 static void setCustomFocusRingColor(const Color&);
167 static float platformFocusRingWidth() { return 3; }
168 static float platformFocusRingOffset(float outlineWidth) { return std::max<float>(outlineWidth - platformFocusRingWidth(), 0); }
169#if ENABLE(TOUCH_EVENTS)
170 static Color tapHighlightColor();
171 virtual Color platformTapHighlightColor() const;
172#endif
173 virtual void platformColorsDidChange();
174
175 virtual Seconds caretBlinkInterval() const { return 500_ms; }
176
177 // System fonts and colors for CSS.
178 void systemFont(CSSValueID, FontCascadeDescription&) const;
179 virtual Color systemColor(CSSValueID, OptionSet<StyleColor::Options>) const;
180
181 virtual int minimumMenuListSize(const RenderStyle&) const { return 0; }
182
183 virtual void adjustSliderThumbSize(RenderStyle&, const Element*) const;
184
185 virtual LengthBox popupInternalPaddingBox(const RenderStyle&) const { return { 0, 0, 0, 0 }; }
186 virtual bool popupOptionSupportsTextIndent() const { return false; }
187 virtual PopupMenuStyle::PopupMenuSize popupMenuSize(const RenderStyle&, IntRect&) const { return PopupMenuStyle::PopupMenuSizeNormal; }
188
189 virtual ScrollbarControlSize scrollbarControlSizeForPart(ControlPart) { return RegularScrollbar; }
190
191 // Returns the repeat interval of the animation for the progress bar.
192 virtual Seconds animationRepeatIntervalForProgressBar(RenderProgress&) const;
193 // Returns the duration of the animation for the progress bar.
194 virtual Seconds animationDurationForProgressBar(RenderProgress&) const;
195 virtual IntRect progressBarRectForBounds(const RenderObject&, const IntRect&) const;
196
197#if ENABLE(VIDEO)
198 // Media controls
199 virtual bool supportsClosedCaptioning() const { return false; }
200 virtual bool hasOwnDisabledStateHandlingFor(ControlPart) const { return false; }
201 virtual bool usesMediaControlStatusDisplay() { return false; }
202 virtual bool usesMediaControlVolumeSlider() const { return true; }
203 virtual bool usesVerticalVolumeSlider() const { return true; }
204 virtual double mediaControlsFadeInDuration() { return 0.1; }
205 virtual Seconds mediaControlsFadeOutDuration() { return 300_ms; }
206 virtual String formatMediaControlsTime(float time) const;
207 virtual String formatMediaControlsCurrentTime(float currentTime, float duration) const;
208 virtual String formatMediaControlsRemainingTime(float currentTime, float duration) const;
209
210 // Returns the media volume slider container's offset from the mute button.
211 virtual LayoutPoint volumeSliderOffsetFromMuteButton(const RenderBox&, const LayoutSize&) const;
212#endif
213
214#if ENABLE(METER_ELEMENT)
215 virtual IntSize meterSizeForBounds(const RenderMeter&, const IntRect&) const;
216 virtual bool supportsMeter(ControlPart) const;
217#endif
218
219#if ENABLE(DATALIST_ELEMENT)
220 // Returns the threshold distance for snapping to a slider tick mark.
221 virtual LayoutUnit sliderTickSnappingThreshold() const;
222 // Returns size of one slider tick mark for a horizontal track.
223 // For vertical tracks we rotate it and use it. i.e. Width is always length along the track.
224 virtual IntSize sliderTickSize() const = 0;
225 // Returns the distance of slider tick origin from the slider track center.
226 virtual int sliderTickOffsetFromTrackCenter() const = 0;
227 void paintSliderTicks(const RenderObject&, const PaintInfo&, const IntRect&);
228#endif
229
230 virtual bool shouldHaveSpinButton(const HTMLInputElement&) const;
231 virtual bool shouldHaveCapsLockIndicator(const HTMLInputElement&) const;
232
233 // Functions for <select> elements.
234 virtual bool delegatesMenuListRendering() const { return false; }
235 virtual bool popsMenuByArrowKeys() const { return false; }
236 virtual bool popsMenuBySpaceOrReturn() const { return false; }
237
238 virtual String fileListDefaultLabel(bool multipleFilesAllowed) const;
239 virtual String fileListNameForWidth(const FileList*, const FontCascade&, int width, bool multipleFilesAllowed) const;
240
241 enum FileUploadDecorations { SingleFile, MultipleFiles };
242 virtual bool paintFileUploadIconDecorations(const RenderObject& /*inputRenderer*/, const RenderObject& /*buttonRenderer*/, const PaintInfo&, const IntRect&, Icon*, FileUploadDecorations) { return true; }
243
244#if ENABLE(SERVICE_CONTROLS)
245 virtual IntSize imageControlsButtonSize(const RenderObject&) const { return IntSize(); }
246 virtual IntSize imageControlsButtonPositionOffset() const { return IntSize(); }
247#endif
248
249#if ENABLE(ATTACHMENT_ELEMENT)
250 virtual LayoutSize attachmentIntrinsicSize(const RenderAttachment&) const { return LayoutSize(); }
251 virtual int attachmentBaseline(const RenderAttachment&) const { return -1; }
252#endif
253
254 enum class InnerSpinButtonLayout { Vertical, HorizontalUpLeft, HorizontalUpRight };
255 virtual InnerSpinButtonLayout innerSpinButtonLayout(const RenderObject&) const { return InnerSpinButtonLayout::Vertical; }
256
257 virtual bool shouldMockBoldSystemFontForAccessibility() const { return false; }
258 virtual void setShouldMockBoldSystemFontForAccessibility(bool) { }
259
260#if USE(SYSTEM_PREVIEW)
261 virtual void paintSystemPreviewBadge(Image&, const PaintInfo&, const FloatRect&);
262#endif
263
264protected:
265 virtual FontCascadeDescription& cachedSystemFontDescription(CSSValueID systemFontID) const;
266 virtual void updateCachedSystemFontDescription(CSSValueID systemFontID, FontCascadeDescription&) const = 0;
267
268 // The platform selection color.
269 virtual Color platformActiveSelectionBackgroundColor(OptionSet<StyleColor::Options>) const;
270 virtual Color platformInactiveSelectionBackgroundColor(OptionSet<StyleColor::Options>) const;
271 virtual Color platformActiveSelectionForegroundColor(OptionSet<StyleColor::Options>) const;
272 virtual Color platformInactiveSelectionForegroundColor(OptionSet<StyleColor::Options>) const;
273
274 virtual Color platformActiveListBoxSelectionBackgroundColor(OptionSet<StyleColor::Options>) const;
275 virtual Color platformInactiveListBoxSelectionBackgroundColor(OptionSet<StyleColor::Options>) const;
276 virtual Color platformActiveListBoxSelectionForegroundColor(OptionSet<StyleColor::Options>) const;
277 virtual Color platformInactiveListBoxSelectionForegroundColor(OptionSet<StyleColor::Options>) const;
278
279 // The platform highlighting colors for search matches.
280 virtual Color platformActiveTextSearchHighlightColor(OptionSet<StyleColor::Options>) const;
281 virtual Color platformInactiveTextSearchHighlightColor(OptionSet<StyleColor::Options>) const;
282
283 virtual bool supportsSelectionForegroundColors(OptionSet<StyleColor::Options>) const { return true; }
284 virtual bool supportsListBoxSelectionForegroundColors(OptionSet<StyleColor::Options>) const { return true; }
285
286#if !USE(NEW_THEME)
287 // Methods for each appearance value.
288 virtual void adjustCheckboxStyle(StyleResolver&, RenderStyle&, const Element*) const;
289 virtual bool paintCheckbox(const RenderObject&, const PaintInfo&, const IntRect&) { return true; }
290 virtual void setCheckboxSize(RenderStyle&) const { }
291
292 virtual void adjustRadioStyle(StyleResolver&, RenderStyle&, const Element*) const;
293 virtual bool paintRadio(const RenderObject&, const PaintInfo&, const IntRect&) { return true; }
294 virtual void setRadioSize(RenderStyle&) const { }
295
296 virtual void adjustButtonStyle(StyleResolver&, RenderStyle&, const Element*) const;
297 virtual bool paintButton(const RenderObject&, const PaintInfo&, const IntRect&) { return true; }
298 virtual void setButtonSize(RenderStyle&) const { }
299
300 virtual void adjustInnerSpinButtonStyle(StyleResolver&, RenderStyle&, const Element*) const;
301 virtual bool paintInnerSpinButton(const RenderObject&, const PaintInfo&, const IntRect&) { return true; }
302#endif
303
304 virtual bool paintCheckboxDecorations(const RenderObject&, const PaintInfo&, const IntRect&) { return true; }
305 virtual bool paintRadioDecorations(const RenderObject&, const PaintInfo&, const IntRect&) { return true; }
306 virtual bool paintButtonDecorations(const RenderObject&, const PaintInfo&, const IntRect&) { return true; }
307
308 virtual void adjustTextFieldStyle(StyleResolver&, RenderStyle&, const Element*) const;
309 virtual bool paintTextField(const RenderObject&, const PaintInfo&, const FloatRect&) { return true; }
310 virtual bool paintTextFieldDecorations(const RenderObject&, const PaintInfo&, const FloatRect&) { return true; }
311
312 virtual void adjustTextAreaStyle(StyleResolver&, RenderStyle&, const Element*) const;
313 virtual bool paintTextArea(const RenderObject&, const PaintInfo&, const FloatRect&) { return true; }
314 virtual bool paintTextAreaDecorations(const RenderObject&, const PaintInfo&, const FloatRect&) { return true; }
315
316 virtual void adjustMenuListStyle(StyleResolver&, RenderStyle&, const Element*) const;
317 virtual bool paintMenuList(const RenderObject&, const PaintInfo&, const FloatRect&) { return true; }
318 virtual bool paintMenuListDecorations(const RenderObject&, const PaintInfo&, const IntRect&) { return true; }
319
320 virtual void adjustMenuListButtonStyle(StyleResolver&, RenderStyle&, const Element*) const;
321 virtual bool paintMenuListButtonDecorations(const RenderBox&, const PaintInfo&, const FloatRect&) { return true; }
322
323 virtual bool paintPushButtonDecorations(const RenderObject&, const PaintInfo&, const IntRect&) { return true; }
324 virtual bool paintSquareButtonDecorations(const RenderObject&, const PaintInfo&, const IntRect&) { return true; }
325
326#if ENABLE(METER_ELEMENT)
327 virtual void adjustMeterStyle(StyleResolver&, RenderStyle&, const Element*) const;
328 virtual bool paintMeter(const RenderObject&, const PaintInfo&, const IntRect&);
329#endif
330
331 virtual void adjustCapsLockIndicatorStyle(StyleResolver&, RenderStyle&, const Element*) const;
332 virtual bool paintCapsLockIndicator(const RenderObject&, const PaintInfo&, const IntRect&);
333
334#if ENABLE(APPLE_PAY)
335 virtual void adjustApplePayButtonStyle(StyleResolver&, RenderStyle&, const Element*) const { }
336 virtual bool paintApplePayButton(const RenderObject&, const PaintInfo&, const IntRect&) { return true; }
337#endif
338
339#if ENABLE(ATTACHMENT_ELEMENT)
340 virtual void adjustAttachmentStyle(StyleResolver&, RenderStyle&, const Element*) const;
341 virtual bool paintAttachment(const RenderObject&, const PaintInfo&, const IntRect&);
342#endif
343
344#if ENABLE(DATALIST_ELEMENT)
345 virtual void adjustListButtonStyle(StyleResolver&, RenderStyle&, const Element*) const;
346#endif
347
348 virtual void adjustProgressBarStyle(StyleResolver&, RenderStyle&, const Element*) const;
349 virtual bool paintProgressBar(const RenderObject&, const PaintInfo&, const IntRect&) { return true; }
350
351 virtual void adjustSliderTrackStyle(StyleResolver&, RenderStyle&, const Element*) const;
352 virtual bool paintSliderTrack(const RenderObject&, const PaintInfo&, const IntRect&) { return true; }
353
354 virtual void adjustSliderThumbStyle(StyleResolver&, RenderStyle&, const Element*) const;
355 virtual bool paintSliderThumb(const RenderObject&, const PaintInfo&, const IntRect&) { return true; }
356 virtual bool paintSliderThumbDecorations(const RenderObject&, const PaintInfo&, const IntRect&) { return true; }
357
358 virtual void adjustSearchFieldStyle(StyleResolver&, RenderStyle&, const Element*) const;
359 virtual bool paintSearchField(const RenderObject&, const PaintInfo&, const IntRect&) { return true; }
360 virtual bool paintSearchFieldDecorations(const RenderObject&, const PaintInfo&, const IntRect&) { return true; }
361
362 virtual void adjustSearchFieldCancelButtonStyle(StyleResolver&, RenderStyle&, const Element*) const;
363 virtual bool paintSearchFieldCancelButton(const RenderBox&, const PaintInfo&, const IntRect&) { return true; }
364
365 virtual void adjustSearchFieldDecorationPartStyle(StyleResolver&, RenderStyle&, const Element*) const;
366 virtual bool paintSearchFieldDecorationPart(const RenderObject&, const PaintInfo&, const IntRect&) { return true; }
367
368 virtual void adjustSearchFieldResultsDecorationPartStyle(StyleResolver&, RenderStyle&, const Element*) const;
369 virtual bool paintSearchFieldResultsDecorationPart(const RenderBox&, const PaintInfo&, const IntRect&) { return true; }
370
371 virtual void adjustSearchFieldResultsButtonStyle(StyleResolver&, RenderStyle&, const Element*) const;
372 virtual bool paintSearchFieldResultsButton(const RenderBox&, const PaintInfo&, const IntRect&) { return true; }
373
374 virtual void adjustMediaControlStyle(StyleResolver&, RenderStyle&, const Element*) const;
375 virtual bool paintMediaFullscreenButton(const RenderObject&, const PaintInfo&, const IntRect&) { return true; }
376 virtual bool paintMediaPlayButton(const RenderObject&, const PaintInfo&, const IntRect&) { return true; }
377 virtual bool paintMediaOverlayPlayButton(const RenderObject&, const PaintInfo&, const IntRect&) { return true; }
378 virtual bool paintMediaMuteButton(const RenderObject&, const PaintInfo&, const IntRect&) { return true; }
379 virtual bool paintMediaSeekBackButton(const RenderObject&, const PaintInfo&, const IntRect&) { return true; }
380 virtual bool paintMediaSeekForwardButton(const RenderObject&, const PaintInfo&, const IntRect&) { return true; }
381 virtual bool paintMediaSliderTrack(const RenderObject&, const PaintInfo&, const IntRect&) { return true; }
382 virtual bool paintMediaSliderThumb(const RenderObject&, const PaintInfo&, const IntRect&) { return true; }
383 virtual bool paintMediaVolumeSliderContainer(const RenderObject&, const PaintInfo&, const IntRect&) { return true; }
384 virtual bool paintMediaVolumeSliderTrack(const RenderObject&, const PaintInfo&, const IntRect&) { return true; }
385 virtual bool paintMediaVolumeSliderThumb(const RenderObject&, const PaintInfo&, const IntRect&) { return true; }
386 virtual bool paintMediaRewindButton(const RenderObject&, const PaintInfo&, const IntRect&) { return true; }
387 virtual bool paintMediaReturnToRealtimeButton(const RenderObject&, const PaintInfo&, const IntRect&) { return true; }
388 virtual bool paintMediaToggleClosedCaptionsButton(const RenderObject&, const PaintInfo&, const IntRect&) { return true; }
389 virtual bool paintMediaControlsBackground(const RenderObject&, const PaintInfo&, const IntRect&) { return true; }
390 virtual bool paintMediaCurrentTime(const RenderObject&, const PaintInfo&, const IntRect&) { return true; }
391 virtual bool paintMediaTimeRemaining(const RenderObject&, const PaintInfo&, const IntRect&) { return true; }
392 virtual bool paintMediaFullScreenVolumeSliderTrack(const RenderObject&, const PaintInfo&, const IntRect&) { return true; }
393 virtual bool paintMediaFullScreenVolumeSliderThumb(const RenderObject&, const PaintInfo&, const IntRect&) { return true; }
394
395 virtual bool paintSnapshottedPluginOverlay(const RenderObject&, const PaintInfo&, const IntRect&) { return true; }
396
397#if ENABLE(SERVICE_CONTROLS)
398 virtual bool paintImageControlsButton(const RenderObject&, const PaintInfo&, const IntRect&) { return true; }
399#endif
400
401public:
402 void updateControlStatesForRenderer(const RenderBox&, ControlStates&) const;
403 ControlStates::States extractControlStatesForRenderer(const RenderObject&) const;
404 bool isActive(const RenderObject&) const;
405 bool isChecked(const RenderObject&) const;
406 bool isIndeterminate(const RenderObject&) const;
407 bool isEnabled(const RenderObject&) const;
408 bool isFocused(const RenderObject&) const;
409 bool isPressed(const RenderObject&) const;
410 bool isSpinUpButtonPartPressed(const RenderObject&) const;
411 bool isHovered(const RenderObject&) const;
412 bool isSpinUpButtonPartHovered(const RenderObject&) const;
413 bool isPresenting(const RenderObject&) const;
414 bool isReadOnlyControl(const RenderObject&) const;
415 bool isDefault(const RenderObject&) const;
416
417protected:
418 struct ColorCache {
419 HashMap<int, Color> systemStyleColors;
420
421 Color systemLinkColor;
422 Color systemActiveLinkColor;
423 Color systemVisitedLinkColor;
424 Color systemFocusRingColor;
425 Color systemControlAccentColor;
426
427 Color activeSelectionBackgroundColor;
428 Color inactiveSelectionBackgroundColor;
429 Color activeSelectionForegroundColor;
430 Color inactiveSelectionForegroundColor;
431
432 Color activeListBoxSelectionBackgroundColor;
433 Color inactiveListBoxSelectionBackgroundColor;
434 Color activeListBoxSelectionForegroundColor;
435 Color inactiveListBoxSelectionForegroundColor;
436
437 Color activeTextSearchHighlightColor;
438 Color inactiveTextSearchHighlightColor;
439 };
440
441 virtual ColorCache& colorCache(OptionSet<StyleColor::Options>) const;
442
443private:
444 mutable HashMap<uint8_t, ColorCache, DefaultHash<uint8_t>::Hash, WTF::UnsignedWithZeroKeyHashTraits<uint8_t>> m_colorCacheMap;
445};
446
447} // namespace WebCore
448